What is Dry Rot?

Dry rot (Serpula lacrymans) is a type of wood decay caused by certain species of fungi that digest parts of the wood which give it strength and stiffness. It is known to be much more destructive than many other types of wood decay fungi, primarily because it can grow in areas with minimal moisture content.

Signs of Dry Rot

  • Wood shrinkage, darkening and cracking

  • Fungal growth, often resembling cotton wool, which may be white, yellow or grey

  • A musty, damp smell

  • Orange or rust coloured spore dust around infected areas

Causes of Dry Rot

Dry rot occurs when the wood in a building becomes too damp due to poor ventilation, leaking pipes, or external weathering. The fungus requires a moisture content of at least 20% to thrive, yet it can spread across dry areas, seeking more timber to destroy.

How to Prevent Dry Rot

  • Ensure proper ventilation in crawl spaces and attics

  • Use dehumidifiers in damp areas

  • Regularly inspect and maintain roofing and guttering to prevent leakage

  • Treat timber with fungicide during building or renovation

Professional Treatment for Dry Rot

If dry rot is suspected, it is crucial to act swiftly to limit damage and preserve the integrity of your property. The process can often involve:

  • The removal of all infected timber and its replacement with pre-treated new wood

  • Treating the surrounding areas to prevent further outbreaks

  • Optimizing building design and maintenance to protect against future risks

For safeguarding against such damaging conditions, consulting with professionals who understand the complexities associated with dry rot can be invaluable. Our seasoned experts at [Your Company Name] are equipped to assess and address any dry rot concerns with precision and care, ensuring the longevity and safety of your building.

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